Zobrazeno 1 - 10
of 130
pro vyhledávání: '"R.A. Wind"'
Publikováno v:
Water Science and Technology. 52:7-12
We are developing novel nuclear magnetic resonance (NMR) microscopy, spectroscopy and combined NMR/optical techniques for the study of biofilms under known, controlled growth conditions. Objectives include: time and depth-resolved metabolite concentr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56c811198c89f54d37b3f5ed31375d22
https://doi.org/10.2166/wst.2005.0174
https://doi.org/10.2166/wst.2005.0174
Publikováno v:
Journal of Magnetic Resonance, Series B. 105:183-187
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49046a9c6c183ec0bd92e8cc7deadc1b
https://doi.org/10.1006/jmrb.1994.1120
https://doi.org/10.1006/jmrb.1994.1120
Publikováno v:
Journal of Magnetic Resonance (1969). 100:425-430
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92c4a5d9d53bd3cbdc2c6e2deec7bf4e
https://doi.org/10.1016/0022-2364(92)90277-e
https://doi.org/10.1016/0022-2364(92)90277-e
Publikováno v:
Physica B+C. 100:175-190
Experimentally the Zeeman relaxation as a function of temperature, caused by the motions of the methyl groups in Ge(CH3)4 shows a “tunnelling” extreme and strongly non-exponential relaxation for ω0/2π = 38 MHz at 103/T = 23. 8 K−1 (T = 42 K)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d1107b507d4b42fb17c6b1d56aa8305
https://doi.org/10.1016/0378-4363(80)90004-2
https://doi.org/10.1016/0378-4363(80)90004-2
Publikováno v:
Chemical Physics Letters. 33:269-274
Spin—lattice relaxation of non-interacting tunnelling methyl groups is determined by seven coupled parameters. For interacting methyl groups in a solid the number of parameters is reduced, by symmetry-restricted spin diffusion, to four, describing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91486f957aac7d137d4433464e18fca7
https://doi.org/10.1016/0009-2614(75)80153-9
https://doi.org/10.1016/0009-2614(75)80153-9
Publikováno v:
Chemical Physics Letters. 102:25-28
In diamonds unpaired electrons associated with nitrogen impurities can be used to enhance the 13 C NMR signal via the solid-state effect. 13 C spectra of three natural and two synthetic diamonds are shown that were obtained in this manner in 10–30
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2f2ee97ff331fec95141ed949047c11
https://doi.org/10.1016/0009-2614(83)80650-2
https://doi.org/10.1016/0009-2614(83)80650-2
Publikováno v:
Solid State Communications. 56:713-716
The presence of structural defects in undoped trans-polyacetylene, both before and after air oxidation, has been investigated by means of 13C NMR CPMAS experiments. To increase the sensitivity the 13C signals have been enhanced via Dynamic Nuclear Po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19375add3fc2727c7d95a0ba5f035d61
https://doi.org/10.1016/0038-1098(85)90785-9
https://doi.org/10.1016/0038-1098(85)90785-9
Publikováno v:
Physica B+C. 104:397-402
For the case the Zeeman relaxation is caused by classically reorienting or tunnelling methyl groups it is investigated how fast a sample has to be rotated to decouple Zeeman-and rotational polarization systems completely. It is found that rotating a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8550a0daa3927f3fca53468e5baefd8e
https://doi.org/10.1016/0378-4363(81)90187-x
https://doi.org/10.1016/0378-4363(81)90187-x
Publikováno v:
Physica B+C. 93:344-348
The lock-in detected proton NMR-signals of methyl groups in solids is considered at arbitrary temperatures of the spin system. In the high temperature approximation the results reduce to those of Goldman and others, extended with coupled spin-lattice
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c759919507ba8c44810f5a489cb8dfa
https://doi.org/10.1016/0378-4363(78)90023-2
https://doi.org/10.1016/0378-4363(78)90023-2
Autor:
R.A Wind, Costantino S. Yannoni
Publikováno v:
Journal of Magnetic Resonance (1969). 36:269-272
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69628b32028d988ffebe027a17c08178
https://doi.org/10.1016/0022-2364(79)90102-1
https://doi.org/10.1016/0022-2364(79)90102-1